<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>New app</title>

    {{ '{% block css %}{% endblock %}' }}
</head>
<body>

{{ '{% block menu_main %}{% endblock %}' }}

{{ '{% block content %}' }}
Nothing here, yet!
{{ '{% endblock %}' }}

{{ '{% block js %}{% endblock %}' }}

</body>
</html>